Reverse circulation ball screw assembly

Abstract

The utility model relates to the technical field of machine manufacturing, and discloses a reverse circulation ball screw pair which comprises a screw rod, the outer wall of the screw rod is in threaded connection with a functional module, the top of the functional module is fixedly connected with a retainer, the inner wall of the retainer is in sliding connection with a spherical ball, the bottom of the functional module is fixedly connected with a limiting block, and the limiting block is fixedly connected with the functional module. An auxiliary frame is slidably connected to the bottom of the limiting block, a limiting groove is formed in the top of the auxiliary frame, an assembling frame is rotatably connected to the right side of the screw rod, a roller is rotatably connected to the top of the left side of the outer wall of the screw rod, and a fixing mechanism is arranged on the left side of the screw rod. According to the utility model, the outer wall of the screw rod is provided with the function module with the balls, friction is reduced, the limiting block slides in the limiting groove of the auxiliary frame, rotation is limited, the module is allowed to move, the screw rod is connected with the assembly frame, the other end is connected with the pin roller, stability is realized, friction is reduced, adaptability is high, installation efficiency is high, the use effect is good, and requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical manufacturing technical field especially relates to a kind of inverse circulation ball screw pair. BACKGROUND

[0002] Inverse circulation ball screw is a special type of ball screw, in ball screw, ball along the helical groove between screw rod and nut circulates to realize the conversion of rotary motion into linear motion, and this structure adopts different ball circulation mode, the circulation path of ball in nut is opposite to common mode, can change the performance characteristics of ball screw, affect its load capacity, precision, speed performance.

[0003] With the continuous development of modern industry, the demand for high-precision, high-speed, high-load linear motion transmission components is increasing, screw rod meets the needs of social development in automatic production, precision machining and high-end equipment manufacturing, improves production efficiency and product quality, realizes high-precision machining operation, and its demand and requirement are more and more important.

[0004] Screw rod in modern society has more complex structure, which increases its manufacturing difficulty and relatively high cost, due to its structural complexity and additional friction, its service life is relatively short, and it is more prone to wear and damage under harsh working conditions such as high load and high speed, and needs more frequent maintenance and replacement, and can only be installed on special equipment during installation, which has the problems of poor use effect, low adaptability, low installation efficiency, difficult maintenance and high cost, which is difficult to meet the demand. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides an inverse circulation ball screw pair, which aims at improving the problems of poor use effect, low adaptability, low installation efficiency, difficult maintenance and high cost in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: an inverse circulation ball screw pair, comprising a screw rod, the outer wall of the screw rod is threadedly connected with a function module, the top of the function module is fixedly connected with a retainer, the inner wall of the retainer is slidably connected with a spherical ball, the bottom of the function module is fixedly connected with a limiting block, the bottom of the limiting block is slidably connected with an auxiliary frame, the top of the auxiliary frame is provided with a limiting groove, the right side of the screw rod is rotatably connected with an assembling frame, the outer wall left side top of the screw rod is rotatably connected with a roller, the left side of the screw rod is provided with a fixing mechanism, and the fixing mechanism is used for fixing structure for convenient disassembly and assembly.

[0007] As a further description of the above technical scheme:

[0008] The fixing mechanism comprises a fixing frame, the top inner wall of the fixing frame is rotationally connected with the left bottom of the outer wall of the screw rod, a butt joint groove is formed in the top rear side of the fixing frame, a butt joint frame is rotationally connected with the top of the fixing frame, a butt joint block is fixedly connected with the bottom rear side of the butt joint frame, a fixing column is slidably connected with the inner wall of the butt joint groove, and a U-shaped block is fixedly connected with the front side of the fixing column.

[0009] As a further description of the above technical solution:

[0010] The left side of the screw rod is fixedly connected with an output shaft, and the left side of the output shaft is fixedly connected with a threaded column.

[0011] As a further description of the above technical solution:

[0012] The inner wall rear side of the auxiliary frame is fixedly connected with a plurality of screws one, and the inner wall front side of the auxiliary frame is fixedly connected with a plurality of screws two.

[0013] As a further description of the above technical solution:

[0014] The outer wall top of the functional module is provided with a plurality of mounting holes, and the mounting holes are circular.

[0015] As a further description of the above technical solution:

[0016] The front side of the butt joint frame is rotationally connected with a rotating column, and the outer wall of the rotating column is fixedly connected with the top of the fixing frame.

[0017] As a further description of the above technical solution:

[0018] The left side of the auxiliary frame is fixedly connected with a welding sheet one, and the welding sheet one is made of a material easy to weld.

[0019] As a further description of the above technical solution:

[0020] The right side of the auxiliary frame is fixedly connected with a welding sheet two, and the welding sheet two is symmetrically arranged with the welding sheet one.

[0021] The utility model has the advantages of the following beneficial effects:

[0022] 1、The utility model discloses a screw rod outer wall installs the functional module of ball, reduces the friction, and the limiting block is in the limiting groove of the auxiliary frame and slides, and the rotation is limited and allows the module to move, and the screw rod is connected with the assembly frame, and the other end is connected the roll, is stable and reduces the friction, and the adaptability is strong, and the installation efficiency is high, and the use effect is good, satisfies the demand.

[0023] 2. The utility model discloses a connecting fixed frame is on the left side of screw rod, forms stable structure, rotates the butt joint frame, and the butt joint groove of fixed frame is connected to the butt joint block, and the round slot of fixed column is passed through butt joint block and fixed frame, U block locking structure, fixed column is passed through functional module and assembly frame, and the stability is strengthened, and this design improves the convenience, and it is convenient to replace maintenance, reduces the cost, satisfies the fixed demand. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front side perspective drawing of inverse circulation ball screw pair screw rod that the utility model proposes;

[0025] Figure 2 It is a partial structure split drawing of inverse circulation ball screw pair functional module that the utility model proposes;

[0026] Figure 3 It is a partial structure drawing of inverse circulation ball screw pair fixed frame that the utility model proposes;

[0027] Figure 4 It is a partial structure display drawing of inverse circulation ball screw pair retainer that the utility model proposes;

[0028] Figure 5 It is a partial structure schematic view of inverse circulation ball screw pair welding plate that the utility model proposes.

[0029] Legend:

[0030] 1, screw rod, 2, fixed mechanism, 201, fixed frame, 202, butt joint groove, 203, butt joint frame, 204, butt joint block, 205, fixed column, 206, U block, 3, functional module, 4, retainer, 5, spherical ball, 6, limit block, 7, auxiliary frame, 8, limit slot, 9, assembly frame, 10, roller, 11, output shaft, 12, threaded column, 13, screw one, 14, screw two, 15, mounting hole, 16, rotating column, 17, welding piece one, 18, welding piece two. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0032] Please refer to the drawings of the utility model Figure 1 , the drawings of the utility model Figure 2 and the drawings of the utility model Figure 4The utility model provides an embodiment: a kind of inverse circulation ball screw pair, including screw rod 1, the outer wall of screw rod 1 is connected with function module 3, the top of function module 3 is fixedly connected with retainer 4, the inner wall of retainer 4 layer is slidably connected with spherical ball 5, the bottom of function module 3 is fixedly connected with limit block 6, the bottom of limit block 6 is slidably connected with auxiliary frame 7, the top of auxiliary frame 7 is equipped with limit slot 8, the right side of screw rod 1 is rotatably connected with assembly frame 9, the outer wall left side top of screw rod 1 is rotatably connected with roller 10, the left side of screw rod 1 is provided with fixed mechanism 2, and fixed mechanism 2 is used for fixed structure to facilitate disassembly and assembly;

[0033] Specifically, the outer wall of screw rod 1 is threadedly connected with a function module 3 to realize specific functional requirements, the top of the function module 3 is fixedly connected with a retainer 4 by a firm connection method, so that the spherical ball 5 can smoothly slide on the inner wall thereof, ensuring stable operation of the spherical ball 5, the bottom of the function module 3 is also fixedly connected with a limit block 6 by a firm connection method, the limit block 6 functions to limit the movement range of the function module 3, ensuring operation of the function module 3 within a predetermined track, thereby improving the accuracy and stability of the system, the bottom of the limit block 6 is designed with a sliding connection structure, so that it can smoothly cooperate with the auxiliary frame 7, the auxiliary frame 7 is an important support component, the top of which is provided with a limit slot 8 for cooperation with the limit block 6, further ensuring stable operation of the function module 3, the assembly frame 9 provides additional support and stability for the entire device, the design of the roller 10 reduces friction and improves the rotation efficiency of the screw rod 1, in order to further enhance the stability and reliability of the device, a fixed mechanism 2 is arranged on the left side of the screw rod 1, and the design of the fixed mechanism 2 is to quickly and firmly fix the entire structure when needed, facilitating disassembly and maintenance.

[0034] Please refer to the accompanying Figure 1 and the accompanying Figure 3 , the fixed mechanism 2 includes a fixed frame 201, the top inner wall of the fixed frame 201 is rotatably connected with the outer wall left side bottom of the screw rod 1, a butt joint groove 202 is formed in the top rear side of the fixed frame 201, a butt joint frame 203 is rotatably connected with the top of the fixed frame 201, a butt joint block 204 is fixedly connected with the bottom rear side of the butt joint frame 203, a fixed column 205 is slidably connected with the inner wall of the butt joint groove 202 and the butt joint block 204, and a U-shaped block 206 is fixedly connected with the front side of the fixed column 205.

[0035] Specifically, the top inner wall of the fixed frame 201 is tightly combined with the left bottom of the outer wall of the screw rod 1 through a rotating connection, so that the fixed frame 201 can be flexibly matched with the screw rod 1 to realize accurate positioning and adjustment. A butt joint groove 202 is specially provided at the top rear side of the fixed frame 201. This butt joint groove 202 not only provides additional structural strength for the fixed frame 201, but also provides convenience for the installation and connection of other components. The design of the butt joint frame 203 allows it to rotate flexibly on the top of the fixed frame 201, thereby adapting to different installation requirements. The butt joint block 204 is matched with the inner wall of the butt joint groove 202 through a sliding connection. This sliding connection design not only ensures smooth movement of the butt joint block 204 in the butt joint groove 202, but also provides resistance when needed to ensure the stability of the entire fixed mechanism 2. The design of the fixed column 205 not only provides additional support points for the entire mechanism, but also can provide additional fixing and locking functions when necessary. The design of the U-shaped block 206 not only provides additional support for the fixed column 205, but also can effectively connect and fix with other components when needed.

[0036] Please refer to the attached Figure 1 , attached Figure 3 and attached Figure 4 , the left side of the screw rod 1 is fixedly connected with the output shaft 11, the left side of the output shaft 11 is fixedly connected with the threaded column 12, the inner wall of the auxiliary frame 7 is fixedly connected with multiple screws one 13 on the rear side, the inner wall of the auxiliary frame 7 is fixedly connected with multiple screws two 14 on the front side, multiple mounting holes 15 are provided on the top of the outer wall of the functional module 3, and the mounting holes 15 are circular.

[0037] Specifically, the left end of the output shaft 11 is also fixedly connected to a threaded column 12, ensuring the stability and reliability of force transmission of the entire structure. The inner wall of the auxiliary frame 7 is uniformly arranged with multiple screws one 13 on the rear side, which are firmly fixed in the corresponding positions to ensure the stability and strength of the auxiliary frame 7. The inner wall of the auxiliary frame 7 is also uniformly arranged with multiple screws two 14 on the front side, which are also firmly fixed in the corresponding positions to further enhance the overall structural stability of the auxiliary frame 7. In order to facilitate installation and fixation, multiple mounting holes 15 are provided on the top of the outer wall of the functional module 3, which are designed to be circular to facilitate installation and fixation by standard circular screws and other fasteners, thereby ensuring that the functional module 3 can be firmly installed in the corresponding position.

[0038] Please refer to the attached Figure 1 , attached Figure 3 and attached Figure 5A rotating column 16 is rotatably connected to the front side of the docking frame 203. The outer wall of the rotating column 16 is fixedly connected to the top of the fixed frame 201. A welding piece 17 is fixedly connected to the left side of the auxiliary frame 7. The welding piece 17 is made of an easy-to-weld material. A welding piece 28 is fixedly connected to the right side of the auxiliary frame 7. The welding piece 28 and the welding piece 17 are arranged symmetrically.

[0039] Specifically, the front end of the docking frame 203 is connected to the rotating column 16 by a rotatable connection. The outer wall of the rotating column 16 is tightly connected to the top of the fixed frame 201 by a firm fixed connection. The left side of the auxiliary frame 7 is designed to be fixedly connected to a welding piece 17. The material of the welding piece 17 is selected to be easy to weld, so as to facilitate subsequent processing and assembly. The right side of the auxiliary frame 7 is also designed to be fixedly connected to a welding piece 2 18. The welding piece 2 18 and the welding piece 17 are arranged symmetrically in structure, thereby ensuring the balance and stability of the overall structure.

[0040] Working principle: Functional module 3 is installed on the outer wall of screw 1 by thread, and the functional module 3 has a retainer 4 with spherical balls 5. The spherical balls 5 roll, which reduces friction and makes the structure run more smoothly. The bottom of the functional module 3 is fixedly connected to the limiting block 6. Since the limiting block 6 slides in the limiting groove 8 on the auxiliary frame 7, it restricts the rotation of the functional module 3 and allows it to move. One end of the screw 1 is assembled with the assembly frame 9, and the outer wall of the other end is rotatably connected to the roller 10. This reduces friction while maintaining stability. This structure does not require a reserved screw installation position, can adapt to various installation scenarios, improves adaptability, improves installation efficiency, enhances the use effect, and meets the needs of the staff.

[0041] By connecting the fixing frame 201 to the left side of the screw 1, a fixed structure is provided for the screw 1. In the structure, the docking frame 203 is rotatably connected, and the docking block 204 at one end of the docking frame 203 is aligned with the docking groove 202 opened in the fixing frame 201. After docking, the fixing post 205 passes through the corresponding circular grooves of the two. The structure is locked by the U-shaped block 206. The fixing post 205 is relatively long and passes through the functional module 3 and the assembly frame 9, which further assists in stabilizing the functional module 3. This structure improves convenience, facilitates replacement and maintenance, reduces costs, and meets the fixing requirements.

[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A recirculating ball screw pair comprising a screw rod (1), characterized in that: The outer wall of the screw rod (1) is threadedly connected with a functional module (3), the top of the functional module (3) is fixedly connected with a retainer (4), the inner wall of the retainer (4) is slidably connected with a spherical ball (5), the bottom of the functional module (3) is fixedly connected with a limiting block (6), the bottom of the limiting block (6) is slidably connected with an auxiliary frame (7), the top of the auxiliary frame (7) is provided with a limiting groove (8), the right side of the screw rod (1) is rotatably connected with an assembling frame (9), the outer wall left side top of the screw rod (1) is rotatably connected with a roller (10), the left side of the screw rod (1) is provided with a fixing mechanism (2), and the fixing mechanism (2) is used for fixing structure convenient to disassemble.

2. A recirculating ball screw pair according to claim 1, characterized in that: The fixing mechanism (2) comprises a fixed frame (201), the top inner wall of the fixed frame (201) is rotatably connected with the outer wall left side bottom of the screw rod (1), the top rear side of the fixed frame (201) is provided with a butt joint groove (202), the top of the fixed frame (201) is rotatably connected with a butt joint frame (203), the bottom rear side of the butt joint frame (203) is fixedly connected with a butt joint block (204), the butt joint block (204) and the inner wall of the butt joint groove (202) are slidably connected with a fixed column (205), and the front side of the fixed column (205) is fixedly connected with a U-shaped block (206).

3. A recirculating ball screw pair according to claim 1, characterized in that: The left side of the screw rod (1) is fixedly connected with an output shaft (11), and the left side of the output shaft (11) is fixedly connected with a threaded column (12).

4. A recirculating ball screw pair according to claim 1, characterized in that: The inner wall rear side of the auxiliary frame (7) is fixedly connected with a plurality of screws one (13), and the inner wall front side of the auxiliary frame (7) is fixedly connected with a plurality of screws two (14).

5. A recirculating ball screw pair according to claim 1, wherein: The outer wall top of the functional module (3) is provided with a plurality of mounting holes (15), and the mounting holes (15) are circular.

6. A recirculating ball screw pair according to claim 2, wherein: The front side of the butt joint frame (203) is rotatably connected with a rotating column (16), and the outer wall of the rotating column (16) is fixedly connected with the top of the fixed frame (201).

7. A recirculating ball screw pair according to claim 1, wherein: The left side of the auxiliary frame (7) is fixedly connected with a welding sheet one (17), and the welding sheet one (17) is easy to weld material.

8. A recirculating ball screw pair according to claim 7, characterized in that: The right side of the auxiliary frame (7) is fixedly connected with a welding sheet two (18), and the welding sheet two (18) and the welding sheet one (17) are symmetrically arranged.

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